The popular theory was that Jon’s father was actually Rhaegar Targaryen, long-dead brother of Daenerys (and Viserys, who died in season 1). Rhaegar kidnapped Lyanna, who had been promised to Robert Baratheon, and spirited her away. Young Ned found his sister in the Tower of Joy in Dorne and fought his way to her, arriving just in time to speak to her before she died following childbirth. Fans also suspect that Rhaegar didn’t kidnap Lyanna and rape her, but that the pair were actually in love.

Jon, of course, doesn’t know anything about his true parentage yet. But given the fact that he’s Dany’s nephew, it’s possible he has more of a claim to the Iron Throne now. Will the battle for the Iron Throne actually come down to two Targaryens?